Grain cleaning and separating mill



` (No Model.) 2 Sheets-Sheet 1.

M. GROLLIMUND.

GRAIN CLEANING AND -SEPARATING MILL.

No.' 373,066. Y Patented Nov. v.15, 1887.

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(No Model.) 2 Sheets-Sheet 2.

M. GROLLIMUND.`

GRAIN CLEANING AND SEPANAIING MILL.

, N0.`373,066. E. vPate'nted Nov, 15-f 1887*..

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UNITI-3D STATns PATENT Ormes.

MORITZ GROLLIMUN D, -OF FERGUS FALLS, MINNESOTA.

GRAIN CLEANiNG AND SEPARATlNG lVllLL..

SPECIFICATION forming part of Letters Patent No. 373,066, dated lcvember 15, 1887.

I Application filed March 4. 1887. Serial No. 229,707. (No model.)

To all whom it maycmcccrm' Be it known that I, MORITZ GROLLIMUND,

and it consists in the construction and arrange ment or combination of the parts thereof', which will be more fully hereinafter described, and definitely pointed out in the claim.

My invention is illustrated in the accompanying drawings, wherein the same letters of reference indicate the same or corresponding parts in the several views, and in which- Figure 1 is a longitudinal vertical section of my improved mill. sectional elevation of the lower gang of sieves, showing my improved cut-off connected thereto. Fig. 3 is a detail view in side elevation of the shoe of the lower gang of sieves, showing the grain-exit opening. Fig. 4 is a top plan View of the lower gang of sieves and the spout, the said spout being illustrated as detached, and also showing the diagonal position ofthe removable cross-piece. Fig. 5 is a detail view in sectional side elevation of the lower gang of sieves, showing the detachable Separating devices removed.

In the drawings, A- represents the framework, and B the sides, ot' a mill of ordinary construction, having a suitable fan and elelower gang of sieves,G, extends the entire length Fig. 2 is a detail view in' of the lower portion of the mill and inclines downward toward the rear thereof. as shown, and is vibrated laterally or longitudinally, as may be desired, by well-known means.

I employ a series of four sieves, a, a', a2, and a3, in this lower gang, G, the meshes of which gradually diminish in size from .the upper to the lower one. These sieves are of an unequal length, the top sieve, a, being of greater length than-the lower ones, a, a?, and ai, each one of which is somewhat shorterthan the one directly above it, as shown in Fig. l.

On the lower end of the sieve a a detachable spout, A', is mounted, extending out beyond the mill and provided wit-h suitable cleats, c c, placed diagonally thereon to concentrate the flow of grain from the sieve a. This spout A has a tongue, c, on one end, as shown, which lits in a groove, e', in the end of the frame of the sieve a, thereby forming a closejoint. The spout A is heldin posit-ion and prevented from slipping, and thereby becoming detached, by a pin, c, extending down through the same at or about its central portion into the supporting-bar b, where it is loosely held, thus allowing an easy withdrawal of the same and the removal of the spout.

`The lower end bars ofthe frame of sieves c and a? are made of dilferent lengths, that of sieve@z being somewhat longer than a', thereby carrying the frames out Hush with each other and beyond the end of the mill, as shown in Fig. 1.

On the under surface of the end bar of sieve a' a groove,f, is cut, running diagonally crosswise of the same, in which a cross-piece, E, is adapted to beinserted, the under side of which rests on the upper surface of the end bar of the frame of sieve a. The lower end of this cross-piece E extends somewhat beyond the sides of the sieves through an elongated opening.l z', cut in the side of the shoe of the sieve and opening into the space between the sieves ja and a2, for a purpose which will be more The sieve a3 isfully hereinafter-described. situated directly under the receiving end portions of the upper sieves, a, a, and at, andextends about midway the length thereof.

Situateddirectly beneath the sieve a3 is a bin, WV, in which the seed that falls through the said sieve is deposited.

ICO

S is a receptacle situated in the bottom of the mill, in which the seeds and broken grain that fall over the end of sieve a3 are deposited.

Rigidly secured to t-he frame-work of the rear part of the mill, and directly under the lower end of sieves a and a", is an inclined trough, H, in which the grain that falls over the ends of said sieves is deposited, and thence conducted down the same to the elevatorinthe rear of the mill. \Vhen the mixed grainand seed is delivered from thehopper upon thegang of sieves D, it comes in contact with the blast from the fan and is relieved from all of the chaff und other foreign substance,and is then shaken down through the meshes of the sieve upon the chute d, which directs it to the upper end portion of the sieve t of the lower gang of sieves, G, which, being rapidly vibrated, quickly shakes the cleaned grain down the face of the same, retaining the larger seed and allowing the smaller to fall through upon the sieves below, the meshes of the different sieves being so arranged as to causea perfect separation of the different sizes of the seed, and thereby the different grades of grain.

Large well-iilled gruin,or first gradc,that remains on the sieve c is shaken down the face of the same upon the spout A at its lower end, and thence intoasuitable receptacle, while the somewhat smaller seed, or second grade,is deposited on the sieve a', and thence down the face ofthe same into the trough H,which, heing inclined,carries it to the elevator, which in turn delivers it into a bag attached thereto. The shrunken grain, or third grade,that falls through the sieves above is received on the sieve a2 and is carried down the same until it reaches the cross-piece E, which,being placed diagonally thereon, leadsit down 'to the side of the sieve,through the opening 'i in the side of the shoe,into a suitable receptacle situated on the outside ofthe mill.

The grassseed which may have been carried down and deposited ou the lower sieve of the gang G, being much smaller than the grain, immediately falls through the sieves into the bin Band is there collected, while the cocklc or other small foreign seeds and broken grain which fall through the sieves a, a, and a2 upon the lower sieve, a", are carried down the same and fall into the receptacle S, this class being generally known as chicken-feed.77 It will thus be seen that l am enabled to secure a perfeet separation of the grain and seed into what is generally known as first second,77 and third7 grades, ehickenfeed, and grass-seed.

If at any time it be desired to mix the first and second grades, it is only necessary to rcmove the spout A,and the u'rst grade will fall into the trough H with the second, thus mixing the two grades,aud still further, if it be desired to mix the third grade with the tirst and second, or with the second alone, the crosspieee E is removed,allowing the grain on the sieve to iiow down into the trough H with the other grades from the sieves above, thus accomplishing a quick and easy mixing or separating of the grain.

It is obvious that manyminor changes in the construction and arrangement of the parts oi' my improved mill could be made and substituted for those shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

rIhe combination of a shoe having an opening, t', in one side, aseries of sieves, a a a, one above another,in said shoe,a spout, H, secured at the lower end of said sieves and adapted to receive the tailings from all of them, a removable spout, A, at the lower end oi' the uppermost of said sieves and projecting over said spout H, and a removable cross piece, E, adapted to be diagonally inserted between two ofthe lower sieves, substantially as set forth.

In testimony whereofI affix my signature in presence of two witnesses.

MORITZ GROLLI MUN D.

Vitnesses:

J. G. WURTELE, EDDIE S. ANDERSON. 

